Joseph s



(No Model.)

J. S. ASH.

DUST GOLLEGYTOR. No. 435,165. Patented Aug. 26, 1890.

f Ill X I 1 J2 Qfl I WITNESSES:

ATTORNEY.

UNITED STATES PATENT OFFICE.

JOSEPH s. ASH, on CANAL WINCHESTER, OHIO, ASSIGNOR or ONE-HALF TO CHARLES E. COWAN, or sAME PLACE.

DUST-COLLECTOR.

SPECIFICATION forming part of Iletters Patent No. 435,165, dated August 26, 1890.

Application filed January 2, 1890. serial No. 335,630. (No model.)

To all whom it may concern: or wings being preferably formed by punch- Be it known that I, JOSEPH S. ASH, a citiing or shearing the metal at the ends and one zen of the United States, residing at Canal side only of the openings and bending the WVinchester, in the county of Franklin and same outward sufficiently to form the Wings State of Ohio, have invented a certain new and openings, as shown more clearly in Fig. 55 and useful Improvement in Dust-Collectors, 4, the wings or flanges being all extended in of which the following is a specification. onedirection and substantially tangent to the The object of my invention is to provide a inner periphery of said cone. dust-collector of novel construction by which In the top of the outer casing and at or a current of dust-laden air is caused auto- 'near the center thereof I provide an outlet- 60 matically to part with the dust particles thereopening D, about which is arranged a depend in and discharge the same through one outlet ing inverted truncated cone-shaped cage or of the dust-collector, while the cleaned air is chamberD closed at the bottom and provided permitted to escape in another direction, or with a series of slotted openings cl in the side I 5 through another outlet in the device. thereof, these openings being preferably ar- 65 My invention consists in the various conranged, as shown in Fig. 5, in two series d structions and combinations of parts hereinand cl. after described, and set forth in the claims. The operation of the device is as follows? In the accompanying drawings, Figure 1 is The dust-laden air enters through the conduit a vertical sectional view of a dust-collector A and passes tangentially into the outer cas- 7o embodying my invention. Figs. 2 and 3 are ing A, in which it circulates. As the speed respectively a side elevation and a plan View of the air becomes retarded, the heavier parof the same. Figs. 4 and 5 are detail views, ticles of dust pass spirally down along the in perspective, of some of the inner parts of inside of the outer casing and pass through the collector, hereinafter more fullydeseribed the small opening a. The air having thus 75 and referred to. parted with the heavier particles of dust and In said drawings, A is an outer cylindrical being partly cleaned, is by contact with the casing, the lower part A of which is conflanges c, which project toward the incoming structed in the nature of an inverted cone, column of dust-laden air,directed tangentially 0 having at the bottom or apex of said cone a through the openings 0 into the inner cone- 8o discharge-opening a. Extending into this shaped compartment B. In this compartment casing A, preferably in the straight cylindrithe air is caused to circulate about the inner cal portion thereof, which is arranged above side of the cone B, the remaining and finer the inverted cone A, is a conduit A which particles of dust being separated therefrom 3 5 enters said casing tangentially, and through and passing spirally down the sides of said 85 which the dust-laden air to be acted upon is cone are discharged through the opening I), caused to pass. thence through the opening a. The air hav- Depending from the top of the casing A is ing thus parted with the dust particles, passes an internal inverted cone B, also provided at through the series of openings (Z and cl into the apex or bottom with an opening I), the the cage D and escapes through the outlet D. 90 lower end of the inner coneB being arranged By providing the inner cone B, having the slightly above the opening a to form a pasflanged openings 0 therein, two distinct sepasage between the inner walls of the outer casrations are secured. By having the coneing and the lower end of the inner cone, the shaped cage D closed at the bottom and proopenings at and I; being in the same vertical vided with peripheral openings therein the 5 line or plane. The inner cone B is provided cleansed air is permitted to escape uniformly at one side with a series of openings 0, each through itsoutlet-opening, and thus obviate of which is constructed with a flangeor wing any tendency toward the creation of a downc', whichextends partly over said opening in ward and inward suction through the center the nature ofashield or deflector, these flanges of the outgoing current, which may occur loo when the air is permitted to escape through the apex of the cone and pass outward-along the inner surface of the same. The hereindescribed construction also obviates the escape of the dust through the outlet-opening and produces in a comparatively-simple manner a thorough separation of the air and the dust.

Having now fully described my invention, What I claim, and desire to secure by Letters Patent, is-

1. In a dust-collector having the outer and inner cone-shaped chambers open at the bottom and provided with tangential openings, as described, an escape-orifice surrounded by an inverted-cone-sl1aped cage closed at the bottom and provided with a series of peripheral openings, substantially as described.

2. The combination, with the outer and inner cone-shaped chambers having the apex openings arranged in the same vertical line one above the other and each provided with tangential openings through which the dustladen air passes, of an escape-orifice located in the top of said outer casing and surrounded with an inverted-truncated-cone-shaped cage closed at the bottom and provided with perforted sides, substantially as specified.

3. The combination, with the outer casing having straight cylindrical upper parts and a truncated-cone-shaped lower part with a discharge-opening therein, of an inner coneshaped compartment depending from the top of said outer casing and provided with a discharge-opening at the bottom arranged above and in line with the discharge-opening of said outer casing, and a discharge-orifice in the top of said outer casing and within said inner compartment, said discharge-orifice being surrounded by a truncated-cone-shaped cage having a closed bottom and perforated sides, substantially as specified.

JOSEPH SJASH.

In presence of- CHAS. M. KING, NATHAN BARCALOU. 

